'78 gs750ec

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • mike-s

    #16
    Perhaps consider trying something like this on the stub of steel left and then use vice grip pliers on the remaining stub to try and remove it.

    Or alternatively, drill a pilot hole for the easy out as suggested by Nessim, get the easy out starting to grip in there, and then use this to cool the stub down to give yourself the maximum advantage you can give yourself. Also if you use an easy-out, make sure you use the largest one you can fit in there to minimise the chance of snapping the hardened steel tip off in there and really really screwing yourself over.

    Comment

    • allojohn
      Forum Sage
      Past Site Supporter
      Super Site Supporter
      • Jan 2011
      • 3515
      • NoMo, MN

      #17
      Originally posted by Nessism
      It's the broken ez-outs that's common, not breaking the drill bits.

      If you decide to drill it out make sure to center punch the bolt after you grind it down flat. Use a small drill bit at first and make sure you hit the center of the bolt. If you are off center, work the drill bit back and forth until you enlarge the hole into the center of the bolt. I can't stress this enough. You need to keep in the center. After a centered hole is achieved, move up one bit size and keep drilling. Typically the broken bolt will spin free at some point if you use LH bits. Please take your time with this task. Many members here botch the job and trash the head.
      Originally posted by mike-s
      Perhaps consider trying something like this on the stub of steel left and then use vice grip pliers on the remaining stub to try and remove it.

      Or alternatively, drill a pilot hole for the easy out as suggested by Nessim, get the easy out starting to grip in there, and then use this to cool the stub down to give yourself the maximum advantage you can give yourself. Also if you use an easy-out, make sure you use the largest one you can fit in there to minimise the chance of snapping the hardened steel tip off in there and really really screwing yourself over.
      Great ideas guys, heating / freezing, I'm feeling more confident this is going to work out and I have a backup plan with LH drill bits.
      -Mal

      "The only reason for time is so that everything doesn't happen at once." - B. Banzai
      ___________

      78 GS750E

      Comment

      • Nessism
        Forum LongTimer
        GSResource Superstar
        Past Site Supporter
        Super Site Supporter
        • Mar 2006
        • 35787
        • Torrance, CA

        #18
        Originally posted by mike-s
        Or alternatively, drill a pilot hole for the easy out as suggested by Nessim, get the easy out starting to grip in there, and then use this to cool the stub down to give yourself the maximum advantage you can give yourself. Also if you use an easy-out, make sure you use the largest one you can fit in there to minimise the chance of snapping the hardened steel tip off in there and really really screwing yourself over.

        Just to make myself clear, I do NOT recommend using an easy-out. I suggest use of LH drill bits and progressively steping up the size until the bolt is cleared out. If necessary, a tap can be used to do the final clean up.

        Easy-outs love to break off, and then they are almost impossible to drill out. Best to stay clear of them entirely unless you are highly skilled in their use.
        Ed

        To measure is to know.

        Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

        Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

        Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

        KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

        Comment

        • allojohn
          Forum Sage
          Past Site Supporter
          Super Site Supporter
          • Jan 2011
          • 3515
          • NoMo, MN

          #19
          10-4 Ed, received and understood. After heating and freezing I will use LH drill bits and move progressively larger to clear out the thread. Hopefully the remnants will unscrew while drilling, if not I will tap out the remainder.
          -Mal

          "The only reason for time is so that everything doesn't happen at once." - B. Banzai
          ___________

          78 GS750E

          Comment

          • Big T
            Forum LongTimer
            Past Site Supporter
            Super Site Supporter
            • Mar 2005
            • 12391
            • West Slope, OR

            #20
            Originally posted by allojohn
            I had been considering upgrading to Works fork springs and shocks but a lot of people on here seem to favor Progressive. More research required....
            Works are excellent - most members here are too cheap for that upgrade
            1978 GS 1000 (since new)
            1979 GS 1000 (The Fridge, superbike replica project)
            1978 GS 1000 (parts)
            1981 GS 850 (anyone want a project?)
            1981 GPZ 550 (backroad screamer)
            1970 450 Mk IIID (THUMP!)
            2007 DRz 400S
            1999 ATK 490ES
            1994 DR 350SES

            Comment

            • allojohn
              Forum Sage
              Past Site Supporter
              Super Site Supporter
              • Jan 2011
              • 3515
              • NoMo, MN

              #21
              Originally posted by Big T
              Works are excellent - most members here are too cheap for that upgrade
              Ha! that's a bit harsh, LOL!
              -Mal

              "The only reason for time is so that everything doesn't happen at once." - B. Banzai
              ___________

              78 GS750E

              Comment

              • Nessism
                Forum LongTimer
                GSResource Superstar
                Past Site Supporter
                Super Site Supporter
                • Mar 2006
                • 35787
                • Torrance, CA

                #22
                Originally posted by allojohn
                Ha! that's a bit harsh, LOL!
                It's true! GSR folks are CHEAP! Me too (sometimes).

                Progressive front springs are tried and true. If those Works springs cost more I'd question the value.
                Ed

                To measure is to know.

                Mikuni O-ring Kits For Sale...https://www.thegsresources.com/_foru...ts#post1703182

                Top Newbie Mistakes thread...http://www.thegsresources.com/_forum...d.php?t=171846

                Carb rebuild tutorial...https://gsarchive.bwringer.com/mtsac...d_Tutorial.pdf

                KZ750E Rebuild Thread...http://www.thegsresources.com/_forum...0-Resurrection

                Comment

                • mike-s

                  #23
                  Originally posted by Nessism
                  Just to make myself clear, I do NOT recommend using an easy-out. I suggest use of LH drill bits and progressively steping up the size until the bolt is cleared out. If necessary, a tap can be used to do the final clean up.

                  Easy-outs love to break off, and then they are almost impossible to drill out. Best to stay clear of them entirely unless you are highly skilled in their use.
                  That's fair enough, hence why i said if you HAVE to use them, use the largest possible diameter one you can fit in there. and given the size of the bolt that's stuck, you can get a pretty big (and consequently strong) easy-out in there. Also i agree, the centering bit is very important regardless of what method is adopted.

                  I have to admit though, the left hand drill bits is a clever idea. He may find that a combination of LH drillbits & the freeze & release is enough to get that bolt stub out.
                  Last edited by Guest; 05-18-2011, 06:11 AM.

                  Comment

                  • allojohn
                    Forum Sage
                    Past Site Supporter
                    Super Site Supporter
                    • Jan 2011
                    • 3515
                    • NoMo, MN

                    #24
                    Been looking at the All Balls steering head conversion and I need some clarification. It appears to need an alteration on the steering stem which would require a machine shop. What exactly is this alteration?
                    -Mal

                    "The only reason for time is so that everything doesn't happen at once." - B. Banzai
                    ___________

                    78 GS750E

                    Comment

                    • allojohn
                      Forum Sage
                      Past Site Supporter
                      Super Site Supporter
                      • Jan 2011
                      • 3515
                      • NoMo, MN

                      #25
                      Originally posted by allojohn
                      Been looking at the All Balls steering head conversion and I need some clarification. It appears to need an alteration on the steering stem which would require a machine shop. What exactly is this alteration?
                      Judging by the lack of posts elsewhere regarding this modification and the zero response to my question I will assume this is an unnecessary modification and stick with the loose balls!

                      The balls and the races looked perfect and were well greased when I took them out anyway.
                      -Mal

                      "The only reason for time is so that everything doesn't happen at once." - B. Banzai
                      ___________

                      78 GS750E

                      Comment

                      • Rudeman

                        #26
                        Originally posted by Nessism
                        It's true! GSR folks are CHEAP! Me too (sometimes).

                        Progressive front springs are tried and true. If those Works springs cost more I'd question the value.
                        Ikons are solid and perform well. They cost quite a bit less than the works shocks.

                        Originally posted by allojohn
                        Judging by the lack of posts elsewhere regarding this modification and the zero response to my question I will assume this is an unnecessary modification and stick with the loose balls!

                        The balls and the races looked perfect and were well greased when I took them out anyway.
                        Not familiar with the All Balls conversion. If you have thesteering assembly apart you may consider a tapered roller bearing conversion. They last forever even under severe service.
                        Last edited by Guest; 05-20-2011, 11:37 AM.

                        Comment

                        • allojohn
                          Forum Sage
                          Past Site Supporter
                          Super Site Supporter
                          • Jan 2011
                          • 3515
                          • NoMo, MN

                          #27
                          Thanks Rudy, I'll take a look at the Ikons.

                          On the steering bearing question I found the mod to fit tapered bearings info on the All Balls site, this is it.



                          On pre '79 models an undercut must be added below the upper bearing. Of all the retailers offering this kit, Z1 is the only one which mentions this.
                          Last edited by allojohn; 05-20-2011, 08:15 PM.
                          -Mal

                          "The only reason for time is so that everything doesn't happen at once." - B. Banzai
                          ___________

                          78 GS750E

                          Comment

                          • allojohn
                            Forum Sage
                            Past Site Supporter
                            Super Site Supporter
                            • Jan 2011
                            • 3515
                            • NoMo, MN

                            #28
                            Had to beat the crap out of the fork seals to get them out. The replacement lower left leg arrived courtesy of AJ in Florida. And both inner legs were spotless, free of any chips, dings or rust. Ready give everything a good clean and insert the new seals.





                            -Mal

                            "The only reason for time is so that everything doesn't happen at once." - B. Banzai
                            ___________

                            78 GS750E

                            Comment

                            • allojohn
                              Forum Sage
                              Past Site Supporter
                              Super Site Supporter
                              • Jan 2011
                              • 3515
                              • NoMo, MN

                              #29
                              Originally posted by Rudeman
                              Ikons are solid and perform well. They cost quite a bit less than the works shocks.



                              Not familiar with the All Balls conversion. If you have the steering assembly apart you may consider a tapered roller bearing conversion. They last forever even under severe service.
                              Thanks again Rudy, I thought the All Balls kit was the only one available for the '78 but after you posted I kept searching and found a tapered bearing kit from Sudco that will drop right in.
                              -Mal

                              "The only reason for time is so that everything doesn't happen at once." - B. Banzai
                              ___________

                              78 GS750E

                              Comment

                              • allojohn
                                Forum Sage
                                Past Site Supporter
                                Super Site Supporter
                                • Jan 2011
                                • 3515
                                • NoMo, MN

                                #30
                                For those novice wrenches, like me, do yourself a favor and buy a seal puller for removing fork oil seals. I bought one, after I had removed two seals by brute force, because I needed the washer that sits under the seal from a third lower leg I had. It came out just like that and I wish I had bought the damned tool for the first two. Doh!
                                -Mal

                                "The only reason for time is so that everything doesn't happen at once." - B. Banzai
                                ___________

                                78 GS750E

                                Comment

                                Working...